Fire retardant wooden door with intumescent materials

Abstract

A fire retardant wooden door that prevents the spread of fire through the door during a fire. The fire retardant wooden door has at least one door panel connected to stiles and rails by tongue and groove joints, and the tongue and groove joints have intumescent material therein. Each of the tongue and groove joints includes a tongue section having the intumescent material along a distal edge of the tongue section which expands upon exposure to heat or fire to seal the tongue and groove joints in order to prevent the heat or fire from passing through the door during a fire. Each of the tongue sections includes an interior channel extending along the axis of the tongue section, and the interior channel extends into the door panel. The interior channel has the intumescent material embedded therein which expands upon exposure to heat or fire to further seal the tongue and groove joints in order to prevent the heat or fire from passing through the door during a fire.

Description

The present invention relates to a fire retardant door, and more particularly to a fire retardant wooden door having intumescent materials therein that provides additional fire resistance for preventing the spread of fire through the fire retardant wooden door and door frame.A fire retardant door, often referred to as a "fire door," is installed in homes, commercial buildings, and industrial plants for preventing the passage or spread of fire from one part of the building to another. In the interest of public safety, standards have been set by governmental agencies; and by municipal, county and state building code authorities and insurance companies for the installation and performance of fire doors. The standards require that the fire retardant doors be installed in wall openings and that they pass industry-wide acceptance tests.Standard test methods for fire door assemblies, such as ASTM E-152, UL 10(b) or NFPA 252, measure the ability of a door assembly to remain in an opening du...

AI Technical Summary

Benefits of technology

Accordingly, it is an advantage of the present invention that it provides for a fire retardant wooden door that prevents the spread of fire through the door and door frame for at least 20 minutes.Another advantage of the present invention is that it provides for a fire retardant wooden door that has fire resistant material strategically embedded and placed within the tongue and groove joints of the fire resistant door, as well as supplemental fire resistant material placed on the perimeter edges of the fire resistant door for preventing the spread of fire through the door and door frame.Another advantage of the present invention is that it provides for a fire retardant wooden door that has fire resistant material being intumescent material that expands in the presence of fire such that the intumescent material closes and seals the component tongue and groove joints, as well as the perimeter edges of the fire retardant door for preventing the spread of fire through the door and door frame.Another advantage of the present invention is that it provides for a fire retardant wooden door that is used as part of an interior or exterior personal living space or workspace, and being installed within home dwellings, commercial buildings or industrial plants.Another advantage of the present invention is that it provides for a fire retardant wooden door that is aesthetically pleasing having the appearance of natural wood, and has achieved a successful fire rating of at least 20 minutes, and is easily installed in a building.A further advantage of the present invention is that it provides for a fire retardant wooden door that can be mass produced in an automated and economical matter and is readily affordable to the builder or consumer.A latitude of modification, change, and substitution is intended in the foregoing disclosure, and in some instances, some features of the invention will be employed without a corresponding use of other features. Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the spirit and scope of the invention herein.

Problems solved by technology

None of the prior art patents teach or disclose the particular door structure of an all wooden door being fire resistant, nor the use of intumescent material in the tongue and groove joints in order to provide for a fire retardant wooden door that prevents the spread of fire through the door and door frame during a fire for at least 20 minutes.

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